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diff --git a/static/netbsd/man4/ubt.4 4.html b/static/netbsd/man4/ubt.4 4.html deleted file mode 100644 index e2fc7af4..00000000 --- a/static/netbsd/man4/ubt.4 4.html +++ /dev/null @@ -1,106 +0,0 @@ -<table class="head"> - <tr> - <td class="head-ltitle">UBT(4)</td> - <td class="head-vol">Device Drivers Manual</td> - <td class="head-rtitle">UBT(4)</td> - </tr> -</table> -<div class="manual-text"> -<section class="Sh"> -<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1> -<p class="Pp"><code class="Nm">ubt</code> — <span class="Nd">USB - Bluetooth driver</span></p> -</section> -<section class="Sh"> -<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1> -<p class="Pp"><code class="Cd">ubt* at uhub? port ? configuration ? interface - ?</code></p> -</section> -<section class="Sh"> -<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1> -<p class="Pp">The <code class="Nm">ubt</code> driver provides support for USB - Bluetooth dongles to the Bluetooth protocol stack.</p> -<p class="Pp">USB Bluetooth dongles provide two interfaces, both of which the - <code class="Nm">ubt</code> driver claims. The second interface is used for - Isochronous data and will have several alternate configurations regarding - bandwidth consumption, which can be set using the hw.ubtN.config - <a class="Xr">sysctl(8)</a> variable. The number of alternate configurations - is indicated by the value in the hw.ubtN.alt_config variable, and the isoc - frame size for the current configuration is shown in the hw.ubtN.sco_rxsize - and hw.ubtN.sco_txsize variables.</p> -<p class="Pp">By default, configuration 0 is selected, which means that no - bandwidth is used on the Isochronous interface and no SCO data can be sent. - Consult the Bluetooth USB specification at https://www.bluetooth.org/ for - complete instructions on setting bandwidth consumption. The following - extract may be useful as a general guidance though details may differ - between manufacturers.</p> -<p class="Pp"></p> -<dl class="Bl-tag Bl-compact"> - <dt>0</dt> - <dd>No active voice channels</dd> - <dt>1</dt> - <dd>One voice channel with 8-bit encoding</dd> - <dt>2</dt> - <dd>Two voice channels with 8-bit encoding, or one voice channel with 16-bit - encoding.</dd> - <dt>3</dt> - <dd>Three voice channels with 8-bit encoding</dd> - <dt>4</dt> - <dd>Two voice channels with 16-bit encoding</dd> - <dt>5</dt> - <dd>Three voice channels with 16-bit encoding</dd> -</dl> -</section> -<section class="Sh"> -<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE - ALSO</a></h1> -<p class="Pp"><a class="Xr">bluetooth(4)</a>, <a class="Xr">uhub(4)</a>, - <a class="Xr">sysctl(8)</a></p> -</section> -<section class="Sh"> -<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1> -<p class="Pp">This <code class="Nm">ubt</code> device driver was originally a - character device written by <span class="An">David Sainty</span> and - <span class="An">Lennart Augustsson</span>. It was rewritten to support - socket based Bluetooth access for <span class="Ux">NetBSD 4.0</span> by - <span class="An">Iain Hibbert</span>.</p> -</section> -<section class="Sh"> -<h1 class="Sh" id="CAVEATS"><a class="permalink" href="#CAVEATS">CAVEATS</a></h1> -<p class="Pp">Isochronous data is seemingly not well supported over USB in the - current system and to get SCO working, you may have to calculate the SCO - packet size that the stack will use. This is the sco_mtu value reported by - the <a class="Xr">btconfig(8)</a> command, and when combined with the SCO - header (3 bytes) should fit exactly into an integer number of Isochronous - data frames where the frame size is indicated by the - ‘hw.ubtN.sco_txsize’ sysctl variable.</p> -<p class="Pp">For example: I want one voice channel (which is all that is - supported, for now) so am using configuration #2, with a frame length of 17 - bytes. This gives possible values of:</p> -<p class="Pp"></p> -<div class="Bd Bd-indent"><code class="Li">(17 * 1) - 3 = 14</code></div> -<div class="Bd Bd-indent"><code class="Li">(17 * 2) - 3 = 31</code></div> -<div class="Bd Bd-indent"><code class="Li">(17 * 3) - 3 = 48</code></div> -<div class="Bd Bd-indent"><code class="Li">(17 * 4) - 3 = 65</code></div> -<div class="Bd Bd-indent"><code class="Li">(17 * 5) - 3 = 82</code></div> -<div class="Bd Bd-indent"><code class="Li">etc.</code></div> -<p class="Pp"><a class="Xr">btconfig(8)</a> shows the maximum SCO payload as 64 - bytes, so I am using the next smaller size of 48, to minimize the overhead - of the 3 header bytes.</p> -<p class="Pp">The SCO packet size can be changed using the - ‘scomtu’ option to <a class="Xr">btconfig(8)</a>.</p> -<p class="Pp">The failure mode is that the USB Bluetooth dongle locks up though - generally removal/reinsertion will clear the problem.</p> -</section> -<section class="Sh"> -<h1 class="Sh" id="BUGS"><a class="permalink" href="#BUGS">BUGS</a></h1> -<p class="Pp">The Isochronous configuration can only be changed when the device - is not marked up.</p> -</section> -</div> -<table class="foot"> - <tr> - <td class="foot-date">August 27, 2006</td> - <td class="foot-os">NetBSD 10.1</td> - </tr> -</table> |